Historical on-time performance
Miami to Los Angeles
2,342 miData through Dec 2025Source: US DOT · BTS
Flights on MIA–LAX arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.1%of scheduled flights
based on 3,170 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time86%Medianon timep9020 minCancel0.3%Flights363
- American AirlinesOn-time75%Medianon timep9050 minCancel0.1%Flights2,807
Why flights run late
Delay causes
- Airline42%
- Weather9%
- Air traffic (NAS)15%
- Late aircraft34%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MIA → LAX
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 83% on time.
- Mornings83% on time · p90 25 min · 4,412 flights
- Middays76% on time · p90 45 min · 858 flights
- Afternoons64% on time · p90 80 min · 1,325 flights
- Evenings62% on time · p90 75 min · 2,185 flights
- Overnights59% on time · p90 85 min · 1,594 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 75% on time.
- Tuesdays75% on time · p90 50 min · 1,491 flights
- Wednesdays73% on time · p90 50 min · 1,490 flights
- Mondays73% on time · p90 55 min · 1,491 flights
- Saturdays73% on time · p90 60 min · 1,438 flights
- Thursdays72% on time · p90 55 min · 1,477 flights
- Fridays71% on time · p90 55 min · 1,489 flights
- Sundays68% on time · p90 60 min · 1,498 flights
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